US 1971 'Airmail' Silhouette of Jet Airliner 11c. Michel 1029yElu
Series: Airmail 1968-1973
Stamp details: Silhouette of Jet Airliner
Issued date: 07-05-1971 (dd/mm/yyyy)
Face value: 11c.
Emission: Air Post
Watermark: No Watermark
Catalogue No:-
Michel (Germany): 1029yElu
Dimensions (height x width):
26mm x 22mm
Printer: Bureau of Engraving and Printing
Print Method: Rotary press
Stamp Colors: Carmine
Perforation: Perf 11 x 10½
Themes: Aircraft, Aviation
Note: Imperforate at left and bottom.
Stamp details: Silhouette of Jet Airliner
Issued date: 07-05-1971 (dd/mm/yyyy)
Face value: 11c.
Emission: Air Post
Watermark: No Watermark
Catalogue No:-
Michel (Germany): 1029yElu
Dimensions (height x width):
26mm x 22mm
Printer: Bureau of Engraving and Printing
Print Method: Rotary press
Stamp Colors: Carmine
Perforation: Perf 11 x 10½
Themes: Aircraft, Aviation
Note: Imperforate at left and bottom.
Description:- A Jet Airliner or Jetliner is an airliner powered by jet engines (passenger jet aircraft). Airliners usually have two or four jet engines; three-engined designs were popular in the 1970s but are less common today. Airliners are commonly classified as either the large wide-body aircraft, medium narrow-body aircraft and smaller regional jet. Most airliners today are powered by jet engines, because they are capable of safely operating at high speeds and generate sufficient thrust to power large-capacity aircraft. The first jetliners, introduced in the 1950s, used the simpler turbojet engine; these were quickly supplanted by designs using turbofans, which are quieter and more fuel-efficient.
Source: en.wikipedia.org/wiki/Jet_airliner
Source: en.wikipedia.org/wiki/Jet_airliner